hi,

There is two options for engineering course after completing Secondary School Leaving Certificate (sslc). your Son may enroll for diploma engineering course in mechatronics engineering or B.tech course in mechatronics engineering. In job and careers prospect it is best to go for b.tech course.

now the majority of college of tamil nadu including chennai takes admission to b.tech course by TNEA counselling or entrance test conducts by institute it self, TNEA counselling  conducts by anna university. tnea is based on 12th score, students need to fill all the credentials and choice of colleges, based on their score college will be allotted.

However till now tnea counselling date has not released yet, I suggest you to keep following the official site and careers360 website to get latest updates:

https://engineering.careers360.com/articles/tnea-exam-dates#TNEA-Exam-Dates-2021

list of mechatronics engineering college of tamil nadu is as follows:

https://engineering.careers360.com/colleges/list-of-be-btech-in-mechatronics-engineering-colleges-in-tamil-nadu